132 lines
4.2 KiB
C
132 lines
4.2 KiB
C
/*
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* va_wayland.h - Wayland API
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*
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* Copyright (c) 2012 Intel Corporation. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef VA_WAYLAND_H
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#define VA_WAYLAND_H
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#include <va/va.h>
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#include <wayland-client.h>
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/**
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* \file va_wayland.h
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* \brief The Wayland rendering API
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*
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* This file contains the \ref api_wayland "Wayland rendering API".
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \defgroup api_wayland Wayland rendering API
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*
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* @{
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*
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* Theory of operations:
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* - Create a VA display for an active Wayland display ;
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* - Perform normal VA-API operations, e.g. decode to a VA surface ;
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* - Get wl_buffer associated to the VA surface ;
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* - Attach wl_buffer to wl_surface ;
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*/
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/**
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* \brief Returns a VA display wrapping the specified Wayland display.
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*
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* This functions returns a (possibly cached) VA display from the
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* specified Wayland @display.
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*
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* @param[in] display the native Wayland display
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* @return the VA display
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*/
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VADisplay
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vaGetDisplayWl(struct wl_display *display);
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/**
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* \brief Returns the Wayland buffer associated with a VA surface.
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*
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* This function returns a wl_buffer handle that can be used as an
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* argument to wl_surface_attach(). This buffer references the
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* underlying VA @surface. As such, the VA @surface and Wayland
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* @out_buffer have the same size and color format. Should specific
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* color conversion be needed, then VA/VPP API can fulfill this
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* purpose.
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*
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* The @flags describe the desired picture structure. This is useful
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* to expose a de-interlaced buffer. If the VA driver does not support
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* any of the supplied flags, then #VA_STATUS_ERROR_FLAG_NOT_SUPPORTED
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* is returned. The following flags are allowed: \c VA_FRAME_PICTURE,
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* \c VA_TOP_FIELD, \c VA_BOTTOM_FIELD.
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*
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* @param[in] dpy the VA display
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* @param[in] surface the VA surface
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* @param[in] flags the deinterlacing flags
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* @param[out] out_buffer a wl_buffer wrapping the VA @surface
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* @return VA_STATUS_SUCCESS if successful
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*/
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VAStatus
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vaGetSurfaceBufferWl(
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VADisplay dpy,
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VASurfaceID surface,
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unsigned int flags,
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struct wl_buffer **out_buffer
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);
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/**
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* \brief Returns the Wayland buffer associated with a VA image.
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*
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* This function returns a wl_buffer handle that can be used as an
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* argument to wl_surface_attach(). This buffer references the
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* underlying VA @image. As such, the VA @image and Wayland
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* @out_buffer have the same size and color format. Should specific
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* color conversion be needed, then VA/VPP API can fulfill this
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* purpose.
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*
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* The @flags describe the desired picture structure. See
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* vaGetSurfaceBufferWl() description for more details.
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*
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* @param[in] dpy the VA display
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* @param[in] image the VA image
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* @param[in] flags the deinterlacing flags
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* @param[out] out_buffer a wl_buffer wrapping the VA @image
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* @return VA_STATUS_SUCCESS if successful
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*/
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VAStatus
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vaGetImageBufferWl(
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VADisplay dpy,
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VAImageID image,
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unsigned int flags,
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struct wl_buffer **out_buffer
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);
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/**@}*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* VA_WAYLAND_H */
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